Kotlin MCQ Questions & Answers - Mobile Development

Kotlin MCQs : This section focuses on "Kotlin" in Mobile Development. These Multiple Choice Questions (MCQ) should be practiced to improve the Kotlin skills required for various interviews (campus interviews, walk-in interviews, company interviews), placements, entrance exams and other competitive examinations.

1. Kotlin was developed by?

B. NetBeans
C. JetBrains
D. Oracle

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2. Kotlin is a statically-typed programming language which runs on the?


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3. Why you should switch to Kotlin from Java?

A. Kotlin language is quite simple compared to Java
B. It reduces may redundancies in code as compared to Java
C. Kotlin can offer some useful features which are not supported by Java
D. All of the above

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4. ____________ feature allows removing the risk of occurrence of NullPointerException in real time.

A. Null Risk
B. Null Safety
C. Null Pointer
D. All of the above

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5. Kotlin is interoperable with Java because it uses JVM bytecode.

A. Yes
B. No
C. Can be yes or no
D. Can not say

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6. How can you declare a variable in Kotlin?

A. value my_var: Char
B. value Char : my_var
C. my_var: Char
D. value my_var: Char

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7. How many types of constructors available in Kotlin?

A. 1
B. 2
C. 3
D. 4

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8. Which of the following is Use for reading contents of file to ByteArray?

A. bufferedReader()
B. readText()
C. readBytes()
D. readLines()

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9. What is the use of data class in Kotlin?

A. extract the basic data types
B. delete the basic data types
C. present the basic data types
D. holds the basic data types

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10. Is there any Ternary Conditional Operator in Kotlin like in Java?

C. Can be true or false
D. Can not say

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